Caster.



H. HANSEN.

CASTER. APPUCATION FILED MAR. 22. |911.

Patented Nov. 2T, 1917.

hmm.

HGH.

HNSEN, UE BS'QN", MASSAGESETTS.

L24 peelcnllon of Letters Patent. Fuiven lfgei llliqiv. Fili.

Application ilecl IiLl'flrelz. Til, No. 56 73.6.

To aZZ wall/0m '15 may Concern.'

Be it known that lr, llinmnn HANSEN, a subject ol? the King or' Dennuirl. residing nl; Boston, in the county ot) ll'olliv und L i'll ot lilissnehiisetlel here invented new und useful. Improvements in Gestern. et which the following,r is u speeiliention.

This invention relnlen to iniproveuientrs in casters und hns for its; object to provid* :i Sirone :nljuetnhle easier :ulupled lo he used on either henryY or light pieces o'll furniture "to adjust. for uneven places in the surface upon which the caster is rentingrv or to rompensnte Yl'or muy unevenness which muy exist between the points of the turnilure where the serernl euslers :ire loenliid.

The invention eonninis in the eonihinution :nul u1' ungenlent of ports set iorlzh in the lollowing' speeilieution und purl ieulnrly poilu ed out in the elninis.

Referring.` to the d wings:

Figure l in n liront ele'vetion of n easter embodying iny invention attached to n, re Cessed nieniher.

Fig. 2 is n `vertical section token on the line 2-2 of Figfl.

Fig. 3 is :i trzinsveree Section teken on the .line 3,-3 of Fig.

Fig. 4 is :i section. similar Yto Fig'. 'trut-ing :i modified forni of raster.

Fig. 5 is u detail t 'unsverse Section tal-:en on the line 5 5 of Fig. lf

Fig. t3 is a Section, siinihir to Figi. 2, illus:- trnting still another modified forro of my invention. V

Fig. 7 is .L detail section teken on the line 7-7 of Fig". (3.

Lilie nume/als refer to like parts through-- illusout the sere nl views o'll the drawings.

in the ('lrnwings, rei'ei'nnig` pnrtieulnrl \Y to Figs. l, Q and 3, which enihody the pre l'erred forni of my invention. ii indicates :i portion of n leg or n piece of furniture with n reeess 2 formed nl lhe bottoni thereof. lli soeli'et 5, having" n. linneo i :it the lower end thereof. is eonstrueied nud arranged to .lit seid recess 2 :ind in inerted therein. 'll e upper end of the socket l is profe ably provided with. o. series of spurs 5 which, Vwl'ien driven into the materiel constituting the furniture, prevent seid socket troni rotating' therein.

T he socket 3 is furthermore informally'l screw threaded at 6 substantiollji/ its entire lenglli und arranged to .lit Said eoeliet screw threaded sleeve I which forros e port und held in pinne oy i'he ..xpnnilin of the eline l. fe. enntertl. lli'otntzihlj*inouned. wit-hin "h sleeve i is the .spindle il oli nnid t l 'lll ernster wliin. in provided with n. eel :uijneent its slower end nud,(fingering the lower end ol the nleere T.

'ihe upper end oli mid spindle. El l i unnulnr recess ll into whirl; linger lf2, ni the upper end of Suid sleeve i. nre ndupled to he 'forced und thus retain @nid :spindle within the sleeve when the liu fniture on whieu the fester in mounted isi litled. lllulin l2 nre resilient no ne lo perniil the 4to he withdrawn hr foi-ee when il; snry to reinore the exister tlnreiroin.`

The Sleeve helow the llzn Kr a ,loelzing roll r ill. Thin eoilnr in' n rrzn to more loniri iulinnlli1 oli ille ele-ere i l. .u i prevented troni heingfl rollin-,d therein hy oppoeilely diwponed llnltened nurlfneen il'. il liorniedlenglhwine of enid Sleeve., unid eelhir haring n eorrenpoinlingrly shnped. hole L5 formed therein.

The eollnr lll Vfurlhern'iore hun tongues 1G, preliernhlji iioiined lily pnrlinlly demohing portions; ol the runter-inl forming seid roller upwardly und these leugnen` nre arranged to project into recensies li' 'liornied in the'lndiir Cent ffice of the flange ifhe eollnr Ll?. is runde cino-shaped with the rini thereolE turned dou'nnuirdly und arranged within Enid eupshnped Ineinher n spring' lll. preliernijly spirnlly foi-ined with the Mueller (foils thereo'lE nrrunged nglninsl, n shoulder lll :it the lower end ol' the sleevey i', Suid springexert-- 'ing n yielding: upwnrd pressure to the loelr ine` coller 13 to nniini'nin the tongues thereof within the recessie l'l'.

Below the coller l0 of the spindle il is; mounted n collar 20 lun/'infr in its; under inf :in nnnulnr groovev Q1 whieh efiiislitutiiis :i r: ee for :i Serien of hulls or rollers ndnpted io he innininiiuwl within unid groove 2li, hi; the upper end 23 ol :i )volte El which forms the support vl'or the roller 25 of the casier. 'lhe yolie 2l is rolntnhly mounted upon the lower end Ztl or the Spindle i) und in :eeeureiil in nueh relation hr e washer Z7 mounted reetly lie-neatly the portion .53 ol unid W.

O.. ed@

were

n nere# projeets .Quiielnnlfinl dini Oe l und hln' niounled lhe lll@ ,11 LLL- lower end ot seid spindle. u

'lo adjust the device just denn'ihed, the looking coller 13 isi epreseed :meinst the nel tion of V(he spring il@ until the engines "lll disengaged, from the reeeenee cf is t i Il?. whereupon lite' said collar may be rotated in one direction or the other according to the adjustment desired and with said collar rotates the sleeve 7 moving said sleeve up or down in the socket 3.

The spring 18 causes the collar 13 to move to its normal lockingv position immediately upon the releasing of pressure thereon, thus maintaining 'said caster in its adjusted posi-A tion.

l'n the form of caster shown in Figs. 4 and 5, the socket 28, similar to the socket` 3, has a flange 29 at its lower end having arranged about the outer margin thereof'a series of spurs 30 which are adapted to be pressed in the material forming the leg 1` so as to prevent said socket from rotating. These spurs 30 take the place of the spurs 5 of the socket 3.

In this form the sleeve 7 has been omitted and instead the shank 31 of the caster 32 is screw threaded to engage the screw threads upon the interior of said socket, said shank being formed integral with the lower portion 26 of the spindle of the caster and the portion 26 and the related parts are sub- 'stantially the same in construction as are in Fig. 2.

The, flange 29 is provided with recesses 33 corresponding to the recesses 17 and into these recesses project the tongues 16 of the locking collar 13. Figs. 6 and 7 illustrate another modified form of this invention em'- bodying a bushing 34 arranged within. the recess 35 of the leg 1 of a piece of furniture and is similar in construction to that usually employed in such connection.

he inner end of the bushing 34 is slotted in several places as at 36 to permit portions of the material at said end to be bent in- Wardly and engage an annular rim 37 formed upon a socket member 38 adapted to fit the bushing 34 and rotate therein. The bushing 34 has a flange 39 at its lower end provided with a series of marginal the corresponding parts of the caster shown f spurs 40 which project into the vleg ot' the furniture and prevent the rotation of said bushing.

The socket member 38 is also provided with a flange 41 which rotates against the flange 39 and is provided with a series of Vradial sockets 42, permitting the insertion ofen instrument for the purpose hereinafter set forth. The socket member 38 is internally screw threaded to receive the screw threaded shank 43 of a caster 44, said shank having oppositclj7 disposed flattened faces 45V extending lengthwise thereof.

A locking collar 46, similar to the collar 13 in Figs. 2 and 4,4 is mounted upon the shank 45 to move lengthwise thereof but 'is prevented from rotating thereon by being provided with a hole 47 luto which lits the shank 43. The collar 46 has tongues 48 mounted thereon which project into corre'n t spending recesses formed in the flange 4l and a spring 49, engaging the collar 50 on the lower end of the shank 43,'and said col vlar 46 retain saidtongues normally in engagementh with said recesses. To the lower end of the shank 43 is rigidly Secured a. yoke 51 which rotatably supports a roller 52. To adjust the caster shown in this form, an instrument is placed within one of the recesses l42 to prevent the rotation of the socket member 38. The collar 46 is then depressed against the action of the spring 49 4to withdraw the tongues 48 from the recesses of the member 41 permitting said collar 46, together with the shank 43 of the caster,'to be rotated. Y

- This rotation causes said shank 'to be moved longitudinally of the socket member 38 by the screw threads `of said members and when the correct adjustment has been secured pressure is relieved-from theA collar 46, permitting the tongues to occupy the nearest recesses in the flange 41, whereupon the adjustment may be maintained for an 9@ indefinite period. After beingadjusted, as described, the'socket member 38 is freed by withdrawing the instrument fronti the recess 42, thus permitting the entire: caster to rotate within the bushing 34 during the movement of the piece of furniture from place to place.

Having thus specically described my invention what I claim and desire by Letters lateut to secureis:

1. A device of the character described having, in combination, a socket, a caster rotatably mounted relatively to said socket, provided with a shank projectinginto said Asocket and -rotatable relatively thereto,f1@5

means for adjusting said shank longitudinally ot' said socket, a collar on said shank, means on said collar adapted to prevent the movement of said shank relatively to said socket, 'and means for yieldingly maintaining said collar in its locking position.

2. A device of the characterdescribed having, in combination, a socket, means for preventing the rotation of said socken, a

caster rotatably mounted relatively to said socket, 'provided with a shank projecting into said socket and rotatable relatively thereto, means for adjusting said shank longitudinally of said socket, a collar on said lshank, means on said collar adapted to pre- 12a vent the movement of said shank relatively to .said socket, and means for yieldingly maintaining said collar in its locking posi tion.

3. A device of the `character described having, in combination, a socket, a easter provided with a shank havingscrew thread,- ed engagement with said socket, a cellar movable lengthwise of said shank, adapted to rotate therewith, means --for preventing 13o' lll) the rotation of said colla-r relatively to said socket, and a spring to yieldingly maintain said collar in its locked position.

l. A device o1 the character described having, in combination, a socket, a caster .provided with a shank having screw threadfl engagement with said socket, a collar movable lengthwise of said shank, adaptedwith said socket, a collar mounted on saidP shank to rotate therewith, said collar being adapted to move longitudinally of said shank, means on said collar adapted to interlock with said socket to prevent the rotation of said shank relatively to said socket, a spring adapted to yieldingly main-- tain said collar in its locking position, and a roller pivotally mounted with respect to said shank.

6. A device of the character described having, in combination, a fixed socket, a shank having screw threaded engagement with said socket, a collar mounted on said shank to rotate' therewith, said collar being adapted to move longitudinally of said shank, means on said collar adapted to interlock with said socket to .prevent the rotation or" said shank relatively to said socket, aspring adapted to yieldingly maintain said-collar in its locking position, a caster provided with a spindle rotatably mounted. within said shank, and means adapted to prevent the withdrawal of said spindle from said shank.

7. A device ot` the character described having, in combination, a fixed socket, a

liange at the lower end of said socket provided with a series of recesses formed on its under face, a sleeve having screw threaded engagement with said socket, said sleeve having a flange at its lower end, a collar mounted upon said. sleeve to rotate therewith and hln/'ing movement longitudinally of said sleeve, a series of tongues Aformed upon said collar adapted to interlock with the recesses in said socket, a spring interposed between said collar and the liange on said sleeve, adapted to normally maintain the tongues of`said collar within the recesses ot said socket, and a easter rotatably mounted in said sleeve.

S. A. device of the character described having, in combination, a iixed socket, a flange at the lower end of said socket pro vided with a series of recesses formed on its under face, a sleeve having screw threaded engagement with said socket, said sleeve having a flange at its lower end, a collar mounted upon said sleeve to rotate therewith and having movement longitudinally of said sleeve, a series of tongues formed upon said collar adapted to interlock with the recesses in said socket, a spring inter-- posed between said collar and the liange on said sleeve, adapted to normally maintain the tongues of said collar within thc recesses of said socket, a caster provided with a spindle arranged in rotatable relation with said sleeve, means for temporarily prevent ing the withdrawal of said spindle on said sleeve, and a roller rotatably mountedupon said spindle.

ln testimony whereof l have hereunto set my hand in presence of two subscribing witnesses.

HARALD HANSEN. Witnesses:

SYDNEY E. TAFT, Harrie E. STR/intronA 

